Hertel H95006203 Jobber Drill Bit Letter D Hss 137 Deg

Product Description

The HERTEL H95006203 is a letter D jobber-length drill bit designed for general-purpose holemaking in metal, wood, and composite materials. Built from heavy-duty high speed steel with an oxide and TiN coating, it delivers extended tool life and reduced friction in production and maintenance drilling applications. The 137-degree split point geometry reduces walking on entry and lowers thrust force needed to start the hole. At 4 inches overall length with a 2-inch flute length and a 0.2460-inch decimal diameter, it fits standard drill chucks used by machinists, maintenance technicians, and metal fabricators.

This drill bit is suited for shop, field, and plant-maintenance applications where a letter D size hole is required. The regular spiral flute with right-hand cutting direction is compatible with standard drill presses, hand drills, and CNC drilling setups running conventional feeds and speeds. The heavy-duty grade designation makes it appropriate for harder workpiece materials where a standard jobber bit would wear prematurely. It is sold and packaged as a single unit.

Key Features

• 137-degree split point reduces drill walking and lowers entry thrust
• Heavy-duty high speed steel construction for extended service life in demanding materials
• Oxide and TiN dual coating reduces friction and heat buildup at the cutting edge
• Right-hand, regular spiral flute for efficient chip evacuation
• Three flats on the shank for positive chuck grip and reduced slippage
• ANSI-specification jobber series for consistent dimensional conformance

Compatibility

Designed as a jobber-length replacement drill bit for any standard drill chuck accepting a 0.2460-inch shank, compatible with drill presses, hand drills, and CNC drilling equipment using letter D or equivalent decimal-inch tooling.

Installation Notes

Install into a properly sized drill chuck and tighten securely using all three shank flats to prevent slippage under load. Always operate at feed rates and spindle speeds appropriate for the workpiece material and bit diameter to avoid premature edge wear or breakage. Wear appropriate eye and hand protection during drilling operations. Inspect the cutting edges before each use and replace the bit if chipping or excessive wear is observed.